James w



(.No Model.)

A J. W. CAMPBELL. Extension Cornice.

PatentedFeb. 22,1881..

l IWA e m UNITED STATES PATENT OFFICE.

JAMES W. OAMPBELLVOF BROOKLYN, NEW YORK.

EXTENSION-CORNICE.`

SPECIFICATION forming part of Letters Patent No. 238,085, dated February `22, 1881.

Application led July 20,1880. (No model.) I

To all whom it may concern:

Be it known that I, JAMES W. CAMPBELL, of the city ot' Brooklyn, in the county of Kin gs and State of New York, have invented certain new and useful Improvements in Extension- Cornices, ot which the following is a specification.

My invention relates to cornices for windows, doors, 85e., which are adapted to be contracted or extended to suit the width ot' a door or window.

My invention consists in the combination, in a cornice with two adjustable win gs, ot' two extension-pieces, one attached permanently to each wing, and adapted to slide upon the other extension-piece, and both of which combine to form a center-piece, the front of which is exposed between the wings, whereby I prolvide an extensionrornice of extremely simple construction, in which the center-piece is eX- tended as the cornice is lengthened, instead of being contracted, as in some of the extensible cornices now in use. The two extensionpieces may be provided with a tongue and groove at their meeting edges, and clamps or plates may be permanently attached to each extension-piece and adapted to embrace the other extension-piece.

In the accompanying drawings, Figure l represents a front view ot' a cornice embodying my invention. Fig.`2 represents a back view ot' such a cornice. Fig. 3 represents a top view thereof, and Fig. 4 is a transverse section thereof upon the dotted line x x, Fig. 1.

Similar letters of reference designate corresponding parts in all the figures.

A A designate the two wings ot my cornice, having return-pieces at the end. Though here shown as embodied in a cornice of quite plain design, the wings may be ornamented or molded to suit the taste.

B designates brackets, one ot' which is attached to the face of each win g, near or at its end. From each wing there projects an extension-piece, O, which is permanently attached thereto, the extension-pieces being attached, respectively, one to the lower portion of the back of one wing, and the other to the upper portion of the back of the other win and as represented in Fig. 2 these extensionpieees are of considerable length, so as to properly support and sustain the wings.

the brackets B which is capable of extension H or contraction as the cornice extends.` or contracts, and hence its length always conforms to the length ot' the cornice.

As clearly shown in Fig. 4, the meetingedges ofthe extension-pieces are provided, the one with a tongue, a, and the other with a groove, b, so that they are effectually prevented from moving laterally upon eac-h other, and to each extension-piece are permanently attached one or more clamps or plates, D, which are each provided with a lip, c, adapted to overlap and embrace the other extensionpiece, as shown in Fig. 4. These clamps or plates hold the two extension-pieces iin tight i'ace-to-face or edge-to-edge contact, and yet permit them to move readily one upon the other longitudinally.

By my invention I provide a very simple, strong, and easily-adjusted cornice, in which the necessity of an independent center-piece is obviated.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, in a cornice with two wings, ot' two extension-pieces, one attached permanently to each wing and adapted to slide one upon the other, and both of which combine to form a center portion, the front ot' which is exposed between the wings, substantially as and for the purpose specilied.

2. The combination, in a cornice with two wings, ot' two extension-pieces, one attached permanently to each wing and adapted to slide one upon the other, and tongned and grooved upon their meeting edges, and both ot' which combine to form a center-piece, the front of which is exposed between the wings, and clamps or plates permanently attached to each extension-piece and embracing the other, substantially as and for the purpose specied.

J. W. CAMPBELL.

Witnesses:

FREDK. HAYNES, THoMAs E. BIRCH. 

